package com.neusmart.common.util;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader.TileMode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.media.ExifInterface;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.util.Base64;
import android.view.View;
import android.view.View.MeasureSpec;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;

public class ImageTools {

    //设置图片的压缩大小约150K
    private static final int COMPRESS_IMAGE_SIZE = 1024 * 150;
    //设置压缩图片的宽与高
    private static final int COMPRESS_IMAGE_WIDTH = 480;
    private static final int COMPRESS_IMAGE_HEIGHT = 800;

    public static Bitmap convertViewToBitmap(View view) {
        view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
        view.buildDrawingCache();
        Bitmap bitmap = view.getDrawingCache();
        return bitmap;
    }

    /**
     * Transfer drawable to bitmap
     *
     * @param drawable
     * @return
     */
    public static Bitmap drawableToBitmap(Drawable drawable) {
        int w = drawable.getIntrinsicWidth();
        int h = drawable.getIntrinsicHeight();

        Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Config.ARGB_8888
                : Config.RGB_565;
        Bitmap bitmap = Bitmap.createBitmap(w, h, config);
        Canvas canvas = new Canvas(bitmap);
        drawable.setBounds(0, 0, w, h);
        drawable.draw(canvas);
        return bitmap;
    }

    /**
     * Bitmap to drawable
     *
     * @param bitmap
     * @return
     */
    public static Drawable bitmapToDrawable(Bitmap bitmap) {
        return new BitmapDrawable(bitmap);
    }

    /**
     * Input stream to bitmap
     *
     * @param inputStream
     * @return
     * @throws Exception
     */
    public static Bitmap inputStreamToBitmap(InputStream inputStream)
            throws Exception {
        return BitmapFactory.decodeStream(inputStream);
    }

    /**
     * Byte transfer to bitmap
     *
     * @param byteArray
     * @return
     */
    public static Bitmap byteToBitmap(byte[] byteArray) {
        if (byteArray.length != 0) {
            return BitmapFactory
                    .decodeByteArray(byteArray, 0, byteArray.length);
        } else {
            return null;
        }
    }

    /**
     * Byte transfer to drawable
     *
     * @param byteArray
     * @return
     */
    public static Drawable byteToDrawable(byte[] byteArray) {
        ByteArrayInputStream ins = null;
        if (byteArray != null) {
            ins = new ByteArrayInputStream(byteArray);
        }
        return Drawable.createFromStream(ins, null);
    }

    /**
     * Bitmap transfer to bytes
     *
     * @param bm
     * @return
     */
    public static byte[] bitmapToBytes(Bitmap bm) {
        byte[] bytes = null;
        if (bm != null) {
            try {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                bm.compress(Bitmap.CompressFormat.JPEG, 100, baos);
                bytes = baos.toByteArray();
                baos.flush();
                baos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return bytes;
    }

    /**
     * Drawable transfer to bytes
     *
     * @param drawable
     * @return
     */
    public static byte[] drawableToBytes(Drawable drawable) {
        BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
        Bitmap bitmap = bitmapDrawable.getBitmap();
        byte[] bytes = bitmapToBytes(bitmap);
        ;
        return bytes;
    }

    /**
     * Base64 to byte[]
     */
    public static byte[] base64ToBytes(String base64) throws IOException {
        byte[] bytes = Base64.decode(base64, Base64.NO_WRAP);
        return bytes;
    }

    /**
     * Byte[] to base64
     */
    public static String bytesTobase64(byte[] bytes) {
        String base64 = Base64.encodeToString(bytes, Base64.NO_WRAP);
        return base64;
    }

    /**
     * Create reflection images
     *
     * @param bitmap
     * @return
     */
    public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
        final int reflectionGap = 4;
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();

        Matrix matrix = new Matrix();
        matrix.preScale(1, -1);

        Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, h / 2, w,
                h / 2, matrix, false);

        Bitmap bitmapWithReflection = Bitmap.createBitmap(w, (h + h / 2),
                Config.ARGB_8888);

        Canvas canvas = new Canvas(bitmapWithReflection);
        canvas.drawBitmap(bitmap, 0, 0, null);
        Paint deafalutPaint = new Paint();
        canvas.drawRect(0, h, w, h + reflectionGap, deafalutPaint);

        canvas.drawBitmap(reflectionImage, 0, h + reflectionGap, null);

        Paint paint = new Paint();
        LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
                bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff,
                0x00ffffff, TileMode.CLAMP);
        paint.setShader(shader);
        // Set the Transfer mode to be porter duff and destination in
        paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
        // Draw a rectangle using the paint with our linear gradient
        canvas.drawRect(0, h, w, bitmapWithReflection.getHeight()
                + reflectionGap, paint);

        return bitmapWithReflection;
    }

    /**
     * Get rounded corner images
     *
     * @param bitmap
     * @param roundPx 5 10
     * @return
     */
    public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();
        Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
        Canvas canvas = new Canvas(output);
        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, w, h);
        final RectF rectF = new RectF(rect);
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return output;
    }

    /**
     * Resize the bitmap
     *
     * @param bitmap
     * @param width
     * @param height
     * @return
     */
    public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();
        Matrix matrix = new Matrix();
        float scaleWidth = ((float) width / w);
        float scaleHeight = ((float) height / h);
        matrix.postScale(scaleWidth, scaleHeight);
        Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
        return newbmp;
    }

    /**
     * Resize the drawable
     *
     * @param drawable
     * @param w
     * @param h
     * @return
     */
    public static Drawable zoomDrawable(Drawable drawable, int w, int h) {
        int width = drawable.getIntrinsicWidth();
        int height = drawable.getIntrinsicHeight();
        Bitmap oldbmp = drawableToBitmap(drawable);
        Matrix matrix = new Matrix();
        float sx = ((float) w / width);
        float sy = ((float) h / height);
        matrix.postScale(sx, sy);
        Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height,
                matrix, true);
        return new BitmapDrawable(newbmp);
    }

    /**
     * Get images from SD card by path and the name of image
     *
     * @param photoName
     * @return
     */
    public static Bitmap getPhotoFromSDCard(String path, String photoName) {
        Bitmap photoBitmap = BitmapFactory.decodeFile(path + "/" + photoName
                + ".png");
        if (photoBitmap == null) {
            return null;
        } else {
            return photoBitmap;
        }
    }

    /**
     * Check the SD card
     *
     * @return
     */
    public static boolean checkSDCardAvailable() {
        return Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED);
    }

    /**
     * Get image from SD card by path and the name of image
     *
     * @param path photoName
     * @return
     */
    public static boolean findPhotoFromSDCard(String path, String photoName) {
        boolean flag = false;

        if (checkSDCardAvailable()) {
            File dir = new File(path);
            if (dir.exists()) {
                File folders = new File(path);
                File photoFile[] = folders.listFiles();
                for (int i = 0; i < photoFile.length; i++) {
                    String fileName = photoFile[i].getName().split("\\.")[0];
                    if (fileName.equals(photoName)) {
                        flag = true;
                    }
                }
            } else {
                flag = false;
            }
        } else {
            flag = false;
        }
        return flag;
    }

    /**
     * Save image to the SD card
     *
     * @param photoBitmap
     * @param photoName
     * @param path
     */
    public static void savePhotoToSDCard(Bitmap photoBitmap, String path,
                                         String photoName) {
        if (checkSDCardAvailable()) {
            File dir = new File(path);
            if (!dir.exists())
                dir.mkdirs();

            File photoFile = new File(path, photoName);
            FileOutputStream fileOutputStream = null;
            try {
                fileOutputStream = new FileOutputStream(photoFile);
                if (photoBitmap != null) {
                    if (photoBitmap.compress(Bitmap.CompressFormat.JPEG, 100,
                            fileOutputStream)) {
                        fileOutputStream.flush();
                    }
                }
            } catch (FileNotFoundException e) {
                photoFile.delete();
                e.printStackTrace();
            } catch (IOException e) {
                photoFile.delete();
                e.printStackTrace();
            } finally {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static final String saveImageToGallery(Context context, Bitmap photoBitmap, String photoName,
                                          String description) {
        File sdcard = Environment.getExternalStorageDirectory();
        if (sdcard != null) {
            File mediaDir = new File(sdcard, "DCIM/Camera");
            if (!mediaDir.exists()) {
                mediaDir.mkdirs();
            }
        }

        return insertImage(context.getContentResolver(), photoBitmap, photoName, description);
    }

    /**
     * A copy of the Android internals  insertImage method, this method populates the
     * meta data with DATE_ADDED and DATE_TAKEN. This fixes a common problem where media
     * that is inserted manually gets saved at the end of the gallery (because date is not populated).
     * @see android.provider.MediaStore.Images.Media#insertImage(ContentResolver, Bitmap, String, String)
     */
    public static final String insertImage(ContentResolver cr,
                                           Bitmap source,
                                           String title,
                                           String description) {

        ContentValues values = new ContentValues();
        values.put(MediaStore.Images.Media.TITLE, title);
        values.put(MediaStore.Images.Media.DISPLAY_NAME, title);
        values.put(MediaStore.Images.Media.DESCRIPTION, description);
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
        // Add the date meta data to ensure the image is added at the front of the gallery
        values.put(MediaStore.Images.Media.DATE_ADDED, System.currentTimeMillis());
        values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis());

        Uri url = null;
        String stringUrl = null;    /* value to be returned */

        try {
            url = cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

            if (source != null) {
                OutputStream imageOut = cr.openOutputStream(url);
                try {
                    source.compress(Bitmap.CompressFormat.JPEG, 50, imageOut);
                } finally {
                    imageOut.close();
                }

                long id = ContentUris.parseId(url);
                // Wait until MINI_KIND thumbnail is generated.
                Bitmap miniThumb = MediaStore.Images.Thumbnails.getThumbnail(cr, id, MediaStore.Images.Thumbnails.MINI_KIND, null);
                // This is for backward compatibility.
                storeThumbnail(cr, miniThumb, id, 50F, 50F,MediaStore.Images.Thumbnails.MICRO_KIND);
            } else {
                cr.delete(url, null, null);
                url = null;
            }
        } catch (Exception e) {
            if (url != null) {
                cr.delete(url, null, null);
                url = null;
            }
        }

        if (url != null) {
            stringUrl = url.toString();
        }

        return stringUrl;
    }

    /**
     * A copy of the Android internals StoreThumbnail method, it used with the insertImage to
     * populate the android.provider.MediaStore.Images.Media#insertImage with all the correct
     * meta data. The StoreThumbnail method is private so it must be duplicated here.
     * @see android.provider.MediaStore.Images.Media (StoreThumbnail private method)
     */
    private static final Bitmap storeThumbnail(
            ContentResolver cr,
            Bitmap source,
            long id,
            float width,
            float height,
            int kind) {

        // create the matrix to scale it
        Matrix matrix = new Matrix();

        float scaleX = width / source.getWidth();
        float scaleY = height / source.getHeight();

        matrix.setScale(scaleX, scaleY);

        Bitmap thumb = Bitmap.createBitmap(source, 0, 0,
                source.getWidth(),
                source.getHeight(), matrix,
                true
        );

        ContentValues values = new ContentValues(4);
        values.put(MediaStore.Images.Thumbnails.KIND,kind);
        values.put(MediaStore.Images.Thumbnails.IMAGE_ID,(int)id);
        values.put(MediaStore.Images.Thumbnails.HEIGHT,thumb.getHeight());
        values.put(MediaStore.Images.Thumbnails.WIDTH,thumb.getWidth());

        Uri url = cr.insert(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, values);

        try {
            OutputStream thumbOut = cr.openOutputStream(url);
            thumb.compress(Bitmap.CompressFormat.JPEG, 100, thumbOut);
            thumbOut.close();
            return thumb;
        } catch (FileNotFoundException ex) {
            return null;
        } catch (IOException ex) {
            return null;
        }
    }


    /**
     * Delete the image from SD card
     *
     * @param path file:///sdcard/temp.jpg
     */
    public static void deleteAllPhoto(String path) {
        if (checkSDCardAvailable()) {
            File folder = new File(path);
            File[] files = folder.listFiles();
            for (int i = 0; i < files.length; i++) {
                files[i].delete();
            }
        }
    }

    public static void deletePhotoAtPathAndName(String path, String fileName) {
        if (checkSDCardAvailable()) {
            File folder = new File(path);
            File[] files = folder.listFiles();
            for (int i = 0; i < files.length; i++) {
                System.out.println(files[i].getName());
                if (files[i].getName().equals(fileName)) {
                    files[i].delete();
                }
            }
        }
    }


    /**
     * Compress quality of image to less than 100kB.
     *
     * @param image
     * @return
     */
    public static Bitmap compressImage(Bitmap image) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        image.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        int options = 100;
        while (baos.toByteArray().length > COMPRESS_IMAGE_SIZE) {
            baos.reset();
            image.compress(Bitmap.CompressFormat.JPEG, options, baos);
            options -= 10;
        }
        ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());
        Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);
        return bitmap;
    }

    /**
     * Compress image in proportion by its path
     *
     * @param srcPath
     * @return
     */
    public static Bitmap compressImageBySrc(String srcPath) {
        if (!checkSDCardAvailable())
            return null;
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(srcPath, options);
        options.inJustDecodeBounds = false;
        int width = options.outWidth;
        int height = options.outHeight;
        int reqWidth = COMPRESS_IMAGE_WIDTH;
        int reqHeight = COMPRESS_IMAGE_HEIGHT;
        int inSampleSize = 1;
        if (width > height && width > reqWidth * 2) {
            inSampleSize = width / reqWidth;
        } else if (width < height && height > reqHeight * 2) {
            inSampleSize = height / reqHeight;
        }
        if (inSampleSize < 1)
            inSampleSize = 1;
        options.inSampleSize = inSampleSize;
        Bitmap bitmap = BitmapFactory.decodeFile(srcPath, options);
        return compressImage(bitmap);
    }

    /**
     * Get path of file by its uri.
     *
     * @param uri
     * @param context
     * @return
     */
    public static String getFilePathByUri(Uri uri, Context context) {
        String path = null;
        boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];
                if ("primary".equalsIgnoreCase(type)) {
                    path = Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {
                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                path = getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{split[1]};

                path = getDataColumn(context, contentUri, selection, selectionArgs);
            }
        } else {
            if ("content".equals(uri.getScheme())) {
                // Start with content://
                String[] proj = {MediaStore.Images.Media.DATA};
                Cursor mediaCursor = context.getContentResolver().query(uri, proj,
                        null, null, null);
                int index = mediaCursor
                        .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                mediaCursor.moveToFirst();
                path = mediaCursor.getString(index);
                mediaCursor.close();
            } else if ("file".equals(uri.getScheme())) {
                // Start with file://, may include Chinese character
                path = uri.toString().replace("file://", "");
                try {
                    path = URLDecoder.decode(path, "UTF-8");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
            }
        }
        return path;
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context       The context.
     * @param uri           The Uri to query.
     * @param selection     (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    public static String getDataColumn(Context context, Uri uri, String selection,
                                       String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * 获取保存图片的目录
     *
     * @return
     */
    public static File getAlbumDir() {
        File dir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "Album");
        if (!dir.exists())
            dir.mkdirs();
        return dir;
    }

    /**
     * 读取图片的旋转的角度
     *
     * @param path 图片绝对路径
     * @return 图片的旋转角度
     */
    public static int getBitmapDegree(String path) {
        int degree = 0;
        try {
            // 从指定路径下读取图片，并获取其EXIF信息
            ExifInterface exifInterface = new ExifInterface(path);
            // 获取图片的旋转信息
            int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                    ExifInterface.ORIENTATION_NORMAL);
            switch (orientation) {
                case ExifInterface.ORIENTATION_ROTATE_90:
                    degree = 90;
                    break;
                case ExifInterface.ORIENTATION_ROTATE_180:
                    degree = 180;
                    break;
                case ExifInterface.ORIENTATION_ROTATE_270:
                    degree = 270;
                    break;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return degree;
    }

    /**
     * 将图片按照某个角度进行旋转
     *
     * @param bitmap     需要旋转的图片
     * @param degree 旋转角度
     * @return 旋转后的图片
     */
    public static Bitmap rotateBitmapByDegree(Bitmap bitmap, int degree) {
        // 根据旋转角度，生成旋转矩阵
        Matrix matrix = new Matrix();
        matrix.postRotate(degree);
        try {
            // 将原始图片按照旋转矩阵进行旋转，并得到新的图片
            bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
        } catch (OutOfMemoryError e) {
        }
        return bitmap;
    }
}
